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What is an Orthotic?
An ORTHOTIC is a foot-supporting device also known as a custom insole. Foot Orthotics support, correct and accommodate the 26 bones, 2 sesamoid bones, tendons, ligaments, and plantar fascia band in each foot.
Foot Orthotics allow the muscles, tendons and bones of the feet through open and closed chain joint migration, up through the legs, hip and lower back, to function at their optimal potential for our body weight, structure, walking pattern and life styles.
When appropriately prescribed and more importantly, appropriately manufactured, Foot Orthotics can decrease pain and discomfort in the foot, ankles, knees, hips and back. Foot Orthotics increase our stability, prevent further progression of bony deformities, soft tissue pain, burning and numbness and help to improve our overall quality of life in our activities of daily living (ADLs).
Remember, foot pain is not normal and should not be ignored. The pain in our feet often is associated with other pains in our lower limbs all due to the poor inherent biomechanics of our foot.
With a foot orthotic supporting the three main arches of the foot the muscles and tendons are able to work within their intended range
Benefits of Orthotics
Custom Foot Orthotics help in providing relief for painful foot problems or an injury, especially for those who must walk, or stand excessively on the job or in every day activities.
The mechanical properties of the Custom Foot Orthotic help to maintain the normal positioning of the bones in the foot, the joints in the ankle and knees leading up to the hips and lower back. The muscles and ligaments holding these bones in their intended anatomical positions are prevented from over stretching and becoming lax over time.
With enough functional correction from a Custom Foot Orthotic, the foot structure can be aligned to give more propulsion, making walking, running and even cycling more efficient biomechanically.
Along with aligning the foot structure, the Custom Foot Orthotic reduces muscular fatigue and helps to promote more efficient muscle performance thus enhancing performance during the gait cycle.
Below is an example of a foot without the corrective support of an orthotic and then another example of the same foot with a Custom Made Foot Orthotic from POL correcting and supporting the foot. Notice the difference a well made Custom Foot Orthotic makes!
The Structure and Function of an Orthotic
Foot Orthotics are constructed from various materials consisting of plastics, foam, rubbers, and cork composites that are utilized for their mechanical properties.
The main similarity of all Foot Orthotics is the principle of their structure. The core is comprised of a plastic material more commonly referred to as the shell. External support structures on the underside of the shell material are utilized for balance and support inside the footwear; these are commonly referred to as extrinsic posts. Soft padding is placed on the underside and the topside to absorb compression forces when walking and running, this includes the top covers, underlay materials and arch fills.
All of these materials have the goal of improving foot function and minimizing the stress forces that cause foot deformity and pain.
Dependent on the reason for the prescription of Foot Orthotics, all of the above mentioned materials can be utilized in many combinations to achieve three broad categories of Foot Orthotics:
Common Foot Problems: do you have these ailments?
Some common foot conditions in which the application of Custom Foot Orthotics is beneficial are listed below:
Low arched, or flat feet, are a common type of foot structure.
Most flat feet are pronated which is a foot in poor functional position. Close examination of this type of foot in a weight-bearing position shows:
Treatment starts with a proper evaluation of the underlying cause of the conditions to diagnose the appropriate correction.
Functional Custom Foot Orthotics to compensate for mechanical faults, will allow your feet to function with improved efficiency. Orthotics relieve stress from compromised joints, ligaments and muscles, diminishing deforming forces acting on the foot.
Sharp pain, aching or stiffness on the bottom of one or both heels is a very common ailment.
Pain from Plantar Fasciitis is often at its worst upon awakening in the morning (or after sitting down for an extended period and then resuming activity). This pain causes hobbling or a limping gait pattern for a few minutes before a comfortable stride can be resumed.
As weight continues to be applied during walking or standing, mild or severe pain may persist.
Another cause of heel pain is bone spurs, where bone growth originates from the heel bone (Calcaneous) and pinches into the tendons of the heel from the Achilles tendon.
Injury, overuse, loss of fat pad and/or non-presence of fat tissue on the heel can also cause heel pain.
Padding added to the dorsal surface of the orthotic will aid in comforting the heel bone; the addition of soft heel spur pads will help to support the perimeter of the heel bone to aid in pain management and healing time. Addition of a hole in the shell material of the orthotic with a soft orthopaedic material plug will aid in decreasing forces on the central axis of the heel. The main support of an orthotic will help maintain proper heel bone alignment to balance the forces acting on the tissues and muscle of the foot to prevent overuse, inflammation and injury.
A common deformity of the big toe joint, a bunion occurs mostly in people who have flat feet or who wear tight fitting footwear that are too small for their dynamic foot size.
Women are more frequently affected with bunions because of tight, pointed, confining or high heeled shoes. Wearing high heels is especially stressful on the joints of the foot because all of the body's weight rests on the ball of the foot; the foot is then forced into a narrow, pointed toe box, compounding the problem.
Older people are also vulnerable to bunions because of the higher incidence of arthritis affecting the big toe joint.
A bunion is a protuberance of bone or tissue around the joint. The enlargement occurs either at the base of the great toe or on the outside of the foot, at the base of the little toe. This is called a "bunionette" or "tailor's bunion."

Because diabetes is a systemic disease affecting many different parts of the body, ideal case management requires a team approach. The Podiatrist Physician, Pedorthist, Chiropodist, Chiropractor and Allied Health Professional are an integral part of the treatment team and work effectively in the prevention of amputations.
The key to amputation prevention in diabetic patients is early recognition and regular foot screenings, from a Podiatric Physician.
In addition to these check ups, there are warning signs that you should be aware of so that they may be identified and called to the attention of the family physician or podiatrist. They include:
Ulceration is a common occurrence with the diabetic foot, and should be carefully treated and monitored by a Podiatrist to avoid amputations.
Poorly fitted shoes, or something as trivial as a stocking seam, can create a wound that may not be felt by someone whose skin sensation is diminished due to neuropathy. Left unattended, such ulcers can quickly become infected and lead to more serious consequences.
Your Podiatric Physician knows how to treat and prevent these wounds and can be an important factor in keeping your feet healthy and strong. New to the science of wound healing are remarkable products that have the appearance and handling characteristics of human skin. These living, skin-like products are applied to wounds that are properly prepared by the Podiatric Physician. Clinical trials have shown impressive success rates.
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